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| − | {{lowercase}}
| + | <code>ssh</code><ref>http://man7.org/linux/man-pages/man1/ssh.1.html</ref> is the [[OpenSSH]] SSH client for logging or executing commands into remote devices/machines |
| − | <code>ssh</code><ref>http://man7.org/linux/man-pages/man1/ssh.1.html</ref> is the [[OpenSSH]] [[ssh clients|ssh client]] for logging or executing commands into remote devices/machines | |
| − | * Man page: https://linux.die.net/man/1/ssh
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| − | * <code>[[ssh --help]]</code>
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| − | ssh [-46AaCfGgKkMNnqsTtVvXxYy] [-B bind_interface] [-b bind_address] [-c cipher_spec] [-D [bind_address:]port]
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| − | [-E log_file] [-e escape_char] [-F configfile] [-I pkcs11] [-i identity_file] [-J destination] [-L address]
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| − | [-l login_name] [-m mac_spec] [-O ctl_cmd] [-o option] [-p port] [-Q query_option] [-R address] [-S ctl_path]
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| − | [-W host:port] [-w local_tun[:remote_tun]] destination [command]
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| − | | |
| − | * <code>-X Enables X11 [[forwarding]]</code>
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| − | * <code>-N Do not execute a [[remote command]]. This is usefull for just [[forwarding]] ports</code>
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| − | * <code>[[ssh -vvv]]</code>
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| − | * <code>[[ssh -V]]</code>
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| − | * <code>[[ssh -t]]</code>
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| − | * <code>[[ssh -O]]</code>
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| − | * <code>ssh -o ConnectTimeout=100</code>
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| − | * <code>[[ssh -i]]</code>
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| − | * <code>[[ssh -L]]</code>
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| − | * <code>[[ssh -R]]</code>
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| − | Windows: Settings > Apps and click “Manage optional features” under Apps & features.
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| − | == Configuration ==
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| − | * Configuration file: <code>[[~/.ssh/config]]</code>
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| − | * <code>[[~/.ssh/environment]]</code>
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| − | | |
| − | == Usage ==
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| − | * <code>[[ssh]] remote_User@server_Name_Or_IP</code>
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| − | | |
| − | * <code>[[ssh -vvv]] REMOTE_USERNAME@REMOTE_SERVER_NAME_OR_IP</code> (<code>-v</code> increase verbosity, maximum 3)
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| − | ** <code>[[ssh]] -vvv REMOTE_USERNAME@REMOTE_SERVER_NAME_OR_IP 2>&1 | grep "STRING_TO_SEARCH" </code>
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| − | Execute a remote command:
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| − | * <code>ssh USERNAME@SERVER_NAME '/path/to/remote/scripts/backup.[[sh]]'</code>
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| − | | |
| − | * <code>[[ssh -Q]] kex SERVER</code>
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| − | | |
| − | == Example commands ==
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| − | * <code>ssh -o [[StrictHostKeyChecking]]=accept-new [email protected]</code> (since [[OpenSSH 7.5]], March 2017) | |
| − | * <code>ssh -o StrictHostKeyChecking=no [email protected]</code><ref>https://serverfault.com/a/132973</ref> | |
| − | * <code>ssh -Q [[kex]] SERVER</code>
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| − | * <code>ssh -o [[MACs]]=[[hmac-sha2-256]] HOSTNAME</code>
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| − | | |
| − | == [[Multiplexing]] options ==
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| − | Master running (pid=26289)
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| − | Control socket connect(/path/): No such file or directory
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| − | | |
| − | To stop an specific multiplexed session:
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| − | | |
| − | Avoid using Multiplexing for a connections:
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| − | :<code>ssh -o "ControlMaster=no" server.example.org</code>
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| − | See also: [[Configure OpenSSH to reuse ssh connections]]
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| − | | |
| − | == Logs ==
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| − | [[ssh -i]] id_ed25519_xxxxx.pub SERVER_NAME
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| − | Load key "id_ed25519_xxxxx.pub": invalid format
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| − | Solution:
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| − | Use private key instead of public key <ref>https://stackoverflow.com/a/48330113</ref>
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| − | ssh -i id_ed25519_xxxxx SERVER_NAME
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| − | | |
| − | * <code>[[Unable to negotiate with]] ([[KexAlgorithms]])</code>
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| − | | |
| − | == Activities ==
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| − | * Understand differences between stop and exit: <code>ssh -O exit [email protected]</code> | |
| − | * [[Configure OpenSSH to reuse ssh connections]]
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| − | * [[Execute a command in parallel by ssh]]
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| − | * <code>[[ssh]] -o [[PreferredAuthentications]]=keyboard-interactive -o [[PubkeyAuthentication]]=no host1.example.org</code>
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| − | * [[Reverse SSH tunneling]]
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| − | | |
| − | == Configuration ==
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| − | * <code>[[CheckHostIP]]</code>
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| − | | |
| − | == Related ==
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| − | * <code>[[gcloud compute ssh]]</code>
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| − | * [[Load key ... invalid format]]
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| − | | |
| − | == See also ==
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| − | * {{ssh (openSSH)}}
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| − | * {{ssh clients}}
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| − | | |
| − | [[Category:Networking]]
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| − | [[Category:Linux]]
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